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Harken 57mm Fiddle Block — Swivel, Becket, Cam Cleat is a versatile, high-performance solution designed for efficient trimming, secure line control and flexible rigging in demanding sailing systems. Featuring a fiddle configuration with two sheaves, this block allows for powerful purchase setups while maintaining smooth, low-friction operation.
Part of the trusted Carbo Air range, this block combines lightweight construction with excellent strength and reliability. The swivel head ensures optimal alignment under changing loads, reducing friction and improving efficiency, while the integrated cam cleat provides quick adjustment and secure line holding. The addition of a becket enables further purchase configurations, making it ideal for more complex control systems.
Perfect for mainsheet systems, vangs and control lines on dinghies and small keelboats, this all-in-one block delivers a clean, efficient and highly adaptable solution for performance sailing.
Specifications
Length: 175 mm / 6 7/8 in
Weight: 295 g / 10.4 oz
Sheave Diameter: 57 mm / 2 1/4 in
Maximum Line Diameter: 10 mm / 3/8 in
Maximum Working Load: 359 kg / 792 lb
Breaking Load: 1080 kg / 2380 lb
Shackle Pin Diameter: 5 mm / 3/16 in
Key Features
- Fiddle block design with dual sheaves for versatile purchase systems
- Integrated cam cleat for quick, secure line holding
- Becket allows additional purchase and flexible rigging setups
- Low-friction Carbo Air construction for smooth, efficient performance
- Swivel head for optimal alignment under load
- Lightweight yet strong construction for performance sailing
- Compact all-in-one design reduces the need for additional hardware
- High working load capacity for safe trimming
- Ideal for mainsheets, vangs and control systems
- Suitable for dinghies and small keelboats
- Reliable performance for racing and cruising use
